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Cant open PDFs in firefox i think as i added a signature extension

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Error showing is: Blocked moz-extension:/... and refused to load a local file in a non-local page for security reasons

I have a fill and edit box above that message

Error showing is: Blocked moz-extension:/... and refused to load a local file in a non-local page for security reasons I have a fill and edit box above that message

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Generally speaking, web content cannot open local files directly from disk (for example, by setting a frame to a disk-based URL). You usually need to use a file input to browse for and load the file (similar to the image upload below this text box I'm typing in).

I don't know whether the extension is causing the problem, but you could ask its author about how to make it work.